Adjustable clamp.



W. HALES.

ADJUSTABLE CLAMP.

APPLICATION FILED novlzl, 1910.

1,01 1,950, Patented Dec.19,1911.

Irma/16 571 COLUMBIA PLANOGRAPH cm. wAsmix' 0000000 c.

' citizen 1 TED STATES PATENT OFFICE WILLIAM HALES, OF ST. LOUIS, MISSOURI.

ADJUSTABLE CLAMP. I

1,011, Specification of iLetters Patent.

Application filed November 21, 1910. Serial No. 593,576.

To all may concern: Be 1t that I, WVILLLAM HALES, a nited States, and resident of St. Lo souri, have invented certain and on the edge 14 of the section 8 is pronew an Improvements in Adjustable vided a locking device 15, which when both Clamps ich the following is a specifisections are placed in position as shown in cation. Flg. 1, retains both sections in a locked posi- This adj usta sections 1 on relates to improvements in ps and has for its object two ed to interlock and hold the tion, its operative connection shown in both of the clamps member ljusted position so as to ac- 8 is provided with a pair of lugs 17, which commoc ious heights of foundry flasks contact with the edge 18 of the section 9 and to whic mproved clamp is preferably 18 for the purpose to rigidly support, and

d t retaln both sectlons in proper alinement A fu bject of my invention is to wlth each other. I

constru mp of two members so ar- The recesses or pockets 12 in which the ranged dju t d t v riou lengths, hook 13 1s seated are so arranged at each adthe sam means eing provided wit-h a locking y the adjusted sections are held in j osition against the article to or one inch depending upon the size of the which t p is applied. clamp and the flask to which the same is to F igur a perspective View of a porbe applled. or small flasks a clamp is contion of dry flask showing my imstructed having its recesses or pockets a proved 1 11 its operative position. Fig. quarter of an inch apart, which will permit 2 is an d detail perspective view of small adjustments. On medium size flasks the inte member view tal indicate k g end of one of the clamp 3 is a horizontal sectional ough the clamp in a position e line 33 of Fig. 1. Fig.

apart.

I may 4 is a de tional view of the contacting 19 as shown in Figs. 1 and 5, this is for the end of t p in a modified form showpurpose that. after the clamp has been ading a m which the clamp may be sejusted to fitover the edges of the flask, and cured to sk. Fig. 5 is a top plan view should there be any small space or lost mof the s tion between the tooth and the edge of the Refer the drawings in detail 6 and flask, the same can be firmly supported by 7 indica two members of a foundry placing the cam 19 in a position as shown by flask, th being placed together after dotted lines in Fig. 4, the contacting edge 20 the mol een properly formed, and in of said cam firmly binding against the edge order to both of said members of the 21 of the flask. flask in l osition I apply my improved The device is simple in construction and clamp o ame, or any number thereof can be readily and easily adjusted to accomas is re the same consisting of two modate various heigths of flasks, and by the sections 9, each of said sections havmere operation of the locking device 15 both ing thei ends bent approximately at sections of the clamp can be disconnected, right an the member forming what and the hook 13 placed into any one of the would b d a tooth 10. The under, or

contact' ace of said teeth may be shorten the clamp, and when once placed in slightly so that when the same are position the mere operation of the locking brought act with the upper and lower device 15 will retain both sections in a rigid edges 0 ask, the same will have a and locking position.

tendenc ce both sections of the flask together he clamp is driven in posiso as to avoid the inconvenience of making tion by r of a clamping bar, hammer, solid clamps of a great number of various or other e instrument. sizes and the waste of time of searching The se is provided with a plurality among a great number of clamps to find a of ridge j ections 11 forming between required number of the same size.

Patented Dec. 19, 1911.

each of the same a recess or pocket 12 in which is adapted to be inserted the prong or hook portion 13 formed on the section 8,

being clearly illustrated in Fig. 1. The opposite edge 16 of the section justment of the clamp as to shorten, or lengthen the device either a quarter, a half,

the pockets are arranged one-half or an inch if desired provide the projecting end or tooth 10 with a cam adjusting device pockets when it is desired to lengthen or The device has been especially constructed Having thus fully described my invention, what I claim as new and desire to have secured to me by the grant of Letters Patent, is:

A clamp of the class described composed of two sections each provided with a right angular projection on one end thereof, a pluralty of projections located on the outer surface of one of said sections, the smooth surface of each section arranged to contact together, a hook formed integral with one section and arranged to span over the other section and seat itself between a pair of the projections formed on said section, lugs formed integral on the section provided with the hook, one located on each side thereof and arranged to contact with the side of the other section, and a pivotal locking device carried by the section provided with the hook and arranged to contact with the other side of the other section to lock both sections in proper alineinent, substantially as specified.

In testimony whereof, I have signed my name to this specification, in presence of two subscribing witnesses.

WILLIAM HALES.

Witnesses ALFRED A. Eicns, WALTER C. STEIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

